<template>
  <div class="login" :style="'background-image:url(' + Background + ');'">
    <a-form id="formLogin" ref="loginForm" :form="form" class="login-form">
      <h3 class="title">媄众后端运营平台</h3>
      <a-form-item prop="username">
        <a-input
          v-decorator="[
            'username',
            { initialValue: '', rules: validatorRules.username.rules }
          ]"
          size="large"
          type="text"
          placeholder="账号"
          @keyup.enter.native="handleLogin"
        >
          <a-icon slot="prefix" type="user" style="color: rgba(0, 0, 0, 0.3)" />
        </a-input>
      </a-form-item>
      <a-form-item prop="password">
        <a-input
          v-decorator="[
            'password',
            { initialValue: '', rules: validatorRules.password.rules }
          ]"
          size="large"
          type="password"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <a-icon slot="prefix" type="lock" style="color: rgba(0, 0, 0, 0.3)" />
        </a-input>
      </a-form-item>
      <a-form-item prop="code">
        <a-input
          v-decorator="[
            'code',
            { initialValue: '', rules: validatorRules.code.rules }
          ]"
          size="large"
          type="text"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <a-icon
            slot="prefix"
            type="safety"
            style="color: rgba(0, 0, 0, 0.3)"
          />
        </a-input>
        <img :src="codeUrl" @click="getCode" />
      </a-form-item>
      <a-checkbox v-model="loginForm.rememberMe" style="margin: 0 0 25px 0">
        记住我
      </a-checkbox>
      <a-form-item style="width: 100%">
        <a-button
          :loading="loading"
          size="large"
          type="primary"
          style="width: 100%"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </a-button>
      </a-form-item>
    </a-form>
    <!--  底部  -->
    <div v-if="$store.state.settings.showFooter" id="el-login-footer">
      <span v-html="$store.state.settings.footerTxt"></span>
      <span> ⋅ </span>
      <a href="https://beian.miit.gov.cn/#/Integrated/index" target="_blank">{{
        $store.state.settings.caseNumber
      }}</a>
    </div>
  </div>
</template>

<script>
import { encrypt } from "@/utils/rsaEncrypt";
import Config from "@/settings";
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import Background from "@/assets/images/background.jpg";
export default {
  name: "Login",
  data() {
    return {
      form: this.$form.createForm(this),
      Background: Background,
      codeUrl: "", // 图片验证码
      cookiePass: "",
      loginForm: {
        username: "admin",
        password: "123456",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      validatorRules: {
        username: {
          rules: [
            { required: true, message: "请输入用户名!" },
            { validator: this.handleUsernameOrEmail }
          ]
        },
        password: {
          rules: [
            { required: true, message: "请输入密码!", validator: "click" }
          ]
        },
        code: { rules: [{ required: true, message: "请输入验证码!" }] }
      },
      loading: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    // 获取验证码
    this.getCode();
    // 获取用户名密码等Cookie
    this.getCookie();
    // token 过期提示
    this.point();
  },
  methods: {
    // 获取图文验证码
    getCode() {
      getCodeImg().then(res => {
        console.log(res)
        this.codeUrl = res.result.img;
        this.loginForm.uuid = res.result.uuid;
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      let password = Cookies.get("password");
      const rememberMe = Cookies.get("rememberMe");
      // 保存cookie里面的加密后的密码
      this.cookiePass = password === undefined ? "" : password;
      password = password === undefined ? this.loginForm.password : password;
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password,
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        code: ""
      };
    },
    handleLogin() {
      const that = this;
      that.loginBtn = true;
      that.form.validateFields((err, values) => {
        console.log(err);
        console.log(values);
        const user = {
          username: values.username,
          password: values.password,
          code: values.code,
          rememberMe: that.loginForm.rememberMe,
          uuid: that.loginForm.uuid
        };
        console.log(user);
        if (user.password !== that.cookiePass) {
          user.password = encrypt(user.password);
        }
        if (!err) {
          that.loading = true;
          if (user.rememberMe) {
            Cookies.set("username", user.username, {
              expires: Config.passCookieExpires
            });
            Cookies.set("password", user.password, {
              expires: Config.passCookieExpires
            });
            Cookies.set("rememberMe", user.rememberMe, {
              expires: Config.passCookieExpires
            });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove("rememberMe");
          }
          that.$store
            .dispatch("Login", user)
            .then(() => {
              that.loading = false;
              that.$router.push({ path: that.redirect || "/" });
            })
            .catch(error => {
              that.$message.error(error.message);
              that.loading = false;
              that.getCode();
            });
        } else {
          that.loginBtn = false;
        }
      });
    },
    point() {
      const point = Cookies.get("point") !== undefined;
      if (point) {
        this.$notify({
          title: "提示",
          message: "当前登录状态已过期，请重新登录！",
          type: "warning",
          duration: 5000
        });
        Cookies.remove("point");
      }
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-size: cover;
}
.title {
  margin: 0 auto 30px auto;
  text-align: center;
  color: #707070;
  font-size: 800;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 385px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  display: inline-block;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
</style>
